Safety Switch
Safety Relay Unit SM1-301
Description
The SM1-301 is a compact 23mm wide safety relay unit designed to monitor emergency stop devices and limit switches. Achieves Safety Category 4 per ISO 13849-1. Compatible with up to 25 units of SS4 Series safety switches connected in series.
Features
- 23 mm width, compact space-saving type
- Applicable to Safety Category 4 per ISO 13849-1
- 25 units of SS4-Series connectable in series, still meets Category 4
- Monitors emergency stop devices and/or limit switches
- 3 safety outputs (N.O.) with force guided contacts
- 1 auxiliary output (N.C.)
Specifications
Model
SM1-301
Power Supply
24VAC / 24VDC (-15%/+10%)
Power Consumption
5VA (AC) / 2.5W (DC)
Short Circuit Protection
Electronic Fuse
Safety Input
N.O. input x2 channels, 166mA max per channel
Safety Output
N.O. Contact x3 - 250VAC 6A (AC Resistive) / 250VAC 5A (AC General) / 24VDC 5A
Auxiliary Output
N.C. Contact x1 - 250VAC 5A (AC Resistive) / 250VAC 5A (AC General) / 24VDC 5A
PL
PLe (Safety Cat.4), SIL 3
Contact Material
AgSnO2
Minimum Contact Load
5VDC 10mA
Response Time
20ms max.
Operating Temperature
-20 to +60°C
Dimensions
100 x 23 x 114 mm
Weight
180g
Protection Class
IP20
MTTFd
>100 Years
Standards
ISO 13849-1, IEC 60204-1, IEC 61508-1/2, IEC 62061, IEC 61326-1/3-1, UL 60947-1/5-1, CE, RoHS
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